Sectional heating boiler



Sept. 1 1931:. J. T. KETCHUM SECTIONAL HEATING BOILER Filed Dec. 5. 1927 2 Sheets-Sheet l Sept 1, 1931. J. T, KETCHUM 9 5 SECTIONAL HEATING BOILER F iled Dec. 3, 1927 2 Sheets-Sheet 2 .62. M B 4% a M-Mm e Patented Sept. 1, 1931' Colin-mg;

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VSECTIONALHEATING 1301mm:

A'pplicationriiled December-'13, 937; Serial m3; 237,443:

invention hroadly reletestoiniprovements' in heating systems for dwellings, b uilflin'gs; and edifices-in general; and 'more' 7 v p:ztrtic zulalrlj to iimoroVements' in"sectional heating boi-lersadziptecl for 'gasor "oil con sumption. v The object ofm-Y invention is'to provide a dvicemf the kind Clescrihecl that will" be ,e economical in fuel; eflihient in 'op'eration, and" pa-rtiulzirly adapted for expansioniin units towmeefithe need '-or:a" given steam-or vapor output. 7

Another object of myiinfvention ismm vicle' a sectional boiler" construction-with f novel means forthe utilization .o f' in'candes cent gasestherein and draftregulation there for. Other objects and advantages of"the' method and construction: herein employed? will-appear more-fuHjrjnthe followingspec i'ficationwhen 'tziken in; connection With the" accompanying drawings; in which, I i Figure 1 is a; sectional view, piartly in; e v elevati nofk boiler embo dying my invention; parts being "broken-away to show *more clearly the waterrlvel tlfereim: I

: Figureg2 is ga detail' view partlyin secion with" a; portion of the 1' front" casing of r oneoftheboilensections brokengaway. 8D Figurefifis an'elevational viewpartly' in seetion', illustrating the dampenregulz -tion. Figure 4: isa'side elevation of my device. Figure 5 is" afrontielevation'thereof; V With more particulzir" reference to" the' 85 drawings wherein'similar characters of ref; erence indicate"corresponding"parts in the several views, ,A designates one of-my: sectional boiler "units' comprising the :top Wall 11 and sidewalls 12 equi opedwithi'the usual refractory lining 13, theinclosure" thus formed providi ng'the usual fire-box or comhustion =ohamben14 having a space for the, reception 'of the boiler 15, which includes 7 t thetub'es 165 communicating withthefront head 17 and the rear head "18, both of -Which open intoysteam dome 1951 The steam'domehes-apart"19" v which proj ects into" the front" head section '17 iii-this -manner, serving as ,a' baffle-for 'steaimtoflth'e 'outlet port252. In the fi-ie-bbX oncombustio'nch'amher Mbfthe boiler A ise: 'liafile *plateQO' which serves to I divi'cl the' rearward-portion of the 'combustion chamber 14 and theloWer portion of the space occupied b'y the tubular boiler 15, into two separate divisions 15 and 15' re spectivelfya "-r -Bj mea ns of the bafiie piate QOY ther products o-f "combustion impinging thereagainst, are compelled" to 1 travel 1 pwardly and over the to portion thereof and then to descend thoughthe division A 15", thence-- passingite the-smoke"- stack hereinafterdescribed more afiiHy-J- The rearward end of? the: chambefi 1'5 has "a flue ou-t1et '21" which entersinto a sinok'e steek hood 22 ,=the hood 5 bein g equipped with' e h'and 'lio1e opening 23' 5 for the remova l of various deposits that may have accumulated Within and around" th e-conibust-ion chamber; "The smoke; stack: ho'od 22' is al"s0-* connected to a stack 25 which has a dimp'el? regul-ttor' '26 provided with inlet andoutlet openings 27, 28,--tlie-' opening 27 communicating with the si'n'oke stash lio'o (i while the opening 28'. communicetes with the upper staek 25 The; damper regulator-26 is provid'ed fwith? az-draio valve 29having one Wing 30 extendingwithin' tlfe interior of the regulator 26', angl anbther Wing; 31 located onthe outside I of the -reguietor, th'e outside wing serving to close the velve opening"32 which' communioates clire otly witlf the atmosphere; The

'openin-g 28, it Will be observed, is partially closed: by th'e inner Wing 30 Which extends Within -the interior of the regulator 26, the down draft in this manner beingeliminated.

7 The regulator Valve 29 as best shown in Figure 3, is provided 'with pockets 33 which latter aeoommodateannular glass pivots 34 which' areadjustable by the set-screws 35, which are mounted'in bea 'ings iifi on'regulator 26.- By this arrangement it Willbe understoocl thnt"regulator valve 29 is readily operated and swungto agreater or less extent by: clown drafts of air impinging there a-gainstw I I The upper-'partf25"of the-sm0ke stack 25 has secured thereto-21, 1 joint which is -con-- nected' tofl a pipe 38 having direct' communication 5 with the chamber-' occupied by the boiler-A; vthepipe 38"having'incorporated therein a conventional damper 39. When the boiler is initially fired, the products of combustion are preferably passed through the pipe 38 by the damper 39 until sufficient heat is discharged therein to dissipate whatever natural moisture and condensation may have accumulated in the boiler,after which the damper 09 is closed and the boiler operated normally by causing the incandescent gases to pass upwardly and downwardly past the baflie plate to the smoke stack hood 22, and thence through the damper regulator 26 and the upper part of the stack.

The rearward part 15 of the boiler A of the chamber 14 is providedwith an inspection and soot removing box 40,-the boiler itself being normally held in position by angle iron brackets 41. V I

The boiler A is'made up of a plurality of individual sections to form a complete unit 'which is capable of being increased or decreased by adding to or taking away one or more sections. The front head 17 and the rearhead 18 have recesses the boiler may be joined together to provide units, adaptable to difierent load conditions. Therear head 18 is provided-with a supply pipe 44 havinga suitable valve 45 connected filled. The frontjhead 17 has a water gauge 46 connected to a pipe 47 entering the lower portion of the head 17. The water gauge comprises the usual glass tube 48 and the valves connected thereto, whereby the water level of the boiler may be ascertained at all times.

The upperend of the pipe 47 is equipped with an elbow connected-with a transversely to; extending pipe 49 and also with a steam gauge 50. It will be noted that the steam dome 19;

protrudes into the head 17, its lower portion being cut away while, an upper portion 51 is extended into the header 17 to act as a ,bafile -15, plate for steam generated therein.

In thetop wall ofthe chamber 17 a port 52 is provided, which enters into a steam hood 53, the latter having an exit port 54 communicatingwith the steam heating system employed. The safety valve 55 and hand hole ports 56 also enter into the chamber 15.

'The combustion chamber is provided with a fuel burner 57 having the usual combustion manifold 53. The, supply pipe and manifold 59 has a plurality of valves 60 which serve to regulate the fuel feed. Each of the burners 67, it will be seen, is provided with a pilot light 61 and a valve 62, which has connection with the manifold 59. With a view to inspecting the combustion chamber 14, a plurality of sightwindows 63 having pivotally mounted lids 64, are provided. 1 ..The functionand mode of operation of my devicehas been in great measure indicated from the foregoing detailed description, and

42 to accommodate tie rods anduuts 43 whereby the sections of.

toa head of water whereby the boiler may be will be more fully apparent by the following explanation upon referring to the several views of the drawings.

Upon igniting the gaseous fuel from the burner 57 by the pilot light 61, the incandescent gases, assuming the boiler to be cold, are first permitted to pass upward through the chamber 15' to the pipe 38, andthence into stack 37. In a short space of time, the usual initial condensation and moisture in the combustion chamber is dissipated, after which the damper 39 is closed and the products of combustion led over and around the baffle plate 20 to the smoke stack hood 22, and thence through the valve regulator to the upper stack to find their way into the atmosphere. This is the normal. operation of the boiler. Conditions may arise when a draft down the stack will impinge against the wing 30 of the valve regulator 29 which will turn about the pivots 34 in a manner to partially close the passage-way of the stack, and at the same time to permit the outside atmosphere to enter through the port of the valve 32. The extent to which the valve regulatorwill swing will depend upon the pressure of the down draft and the equalizing pressure of the atmosphere of the room in which the boiler is located, which will enter when the outside wing 31 is raised. This feature of my invention, it will be noticed, provides an automatic regulation of the draft which will require no manual attention. The portable boiler described is particularly adapted to be set up in a short space of time, and should at any time the heating load requirements demand a further increase of steam production, sections can be added on bymerely pass ing the tie rods 43 through the additlonal section, and making connections thereto by the nuts threading thereon.

While I have described and illustrated with particularity a preferred embodiment of my invent-ion, it will be readily understood by those skilled in the art to which my invention appertains that my device is susceptible of considerable modification and. variation; hence I do not confine myself to the specific details as set forth, but wish to avail myself of such changes and modifications as fairly fall within the the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is: a

1. A boiler comprising a plurality of portabletubular sections joined to form a single expansible boiler, a common combustion chamber and an individual fuelv burner for each of said tubular sections, a pair of head sections joining the ends of each of the tubular sections, a steam dome connecting and communicating with both of said head sec tions, said steam dome having an integral portion projecting partly into one of the head sections thereby compelling the passage of 0 steam to one side thereof, said integral portion being formed by the cutting off of a front lower portion of said steam dome and serving as a baiile for steam in said dome.

2 A boiler comprising in combination a plurality of individual portable tubular sectional units detachably joined by elements insertable in the units and clampingly connected thereto, each of said sectional units communicating with a front head and a'rear head; said front head and said rear head being operatively connected to a steam dome, said steam dome having a steam baflie plate formed by the cutting away of the underneath section of the dome a second baflie plate arranged in a combustion chamber forming a part of said'boiler, said second baffle plate providing a means for directing products of combustion upwardly and downwardly through said tubular boiler units, substantially as described.

In testimony whereof I have signed my name to this specification.

JAMES T. KETCHUM. 

